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稻白叶枯病是广西主要水稻病害之一,国内外大量实践证明:选用抗病良种是控制本病发生的一项经济有效、简单易行的基本措施,又有利于减少农药污染,维护生态平衡,而发掘抗源品种则是选育抗病良种的重要物质基础。但由于各地稻白叶枯病菌致病力的差异,同一品种在不同地区的抗性表现往往不同,特特普和塔都康在日本抗病,在菲律宾及其西部国家则感病,Bjl 在菲律宾及其东部国家抗病,在孟加拉和印度某些地区则感病[6]。BG35—2在我国广东[4]、广西抗病,在朝鲜半岛南部则感病[4]。因此,不论那个国家或地区,即使引入外地的抗源亲本,都必须测定其对本地
Rice bacterial leaf blight is one of the major rice diseases in Guangxi. A large number of domestic and foreign practices have proved that the selection of resistant varieties is a cost-effective and easy-to-implement basic measure to control the occurrence of the disease, and is also conducive to reducing pesticide pollution and maintaining ecological Balance, and explore the anti-source varieties is the breeding of disease-resistant varieties of important material basis. However, due to the differences in pathogenicity of the isolates of rice leaf blight around the same species in different regions of the performance of resistance are often different, Tete and Tadu Kang in Japan, the disease in the Philippines and western countries are susceptible, Bjl in The Philippines and its eastern countries are resistant to disease and are susceptible in parts of Bangladesh and India [6]. BG35-2 is resistant to the disease in Guangxi [4] in our country, and is susceptible in the southern part of the Korean Peninsula [4]. Therefore, irrespective of the country or region, even if introduced into the anti-source parents in the field, it must determine its local